CN220598174U - Construction structure of safety ladder cage of underwater pier continuous rigid frame bridge - Google Patents
Construction structure of safety ladder cage of underwater pier continuous rigid frame bridge Download PDFInfo
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- CN220598174U CN220598174U CN202322073926.0U CN202322073926U CN220598174U CN 220598174 U CN220598174 U CN 220598174U CN 202322073926 U CN202322073926 U CN 202322073926U CN 220598174 U CN220598174 U CN 220598174U
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- 238000010276 construction Methods 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000011435 rock Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 76
- 239000010959 steel Substances 0.000 claims description 76
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 4
- 230000001932 seasonal effect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of highway bridge engineering, and discloses a construction structure of a continuous rigid frame bridge safety ladder cage of a water pier. Including prefabricated steel-pipe pile, ladder cage mounting platform and prefabricated ladder cage, the bottom of prefabricated steel-pipe pile sets up in the aquatic foundation rock layer, the fixed setting of ladder cage mounting platform is in the top of prefabricated steel-pipe pile, the top of prefabricated steel-pipe pile is higher than the surface of water, the fixed setting of prefabricated ladder cage is in ladder cage mounting platform top surface, the emergency exit has been seted up to prefabricated ladder cage, prefabricated ladder cage is provided with the transfer passageway that is used for leading to aquatic mound, is provided with the ladder in the prefabricated ladder cage. The construction structure of the underwater pier continuous rigid frame bridge safety ladder cage is beneficial to rapid, low-cost and environment-friendly construction of the underwater pier by erecting the safety ladder cage in the water flow of rivers, lakes and canyons.
Description
Technical Field
The utility model relates to the technical field of highway bridge engineering, in particular to a construction structure of a continuous rigid frame bridge safety ladder cage of a water pier.
Background
With the rapid development of the expressway industry, bridges are required to be built in the expressway industry in order to pass through natural river, lake, canyon and other obstacles in the building process. Pier studs, capping beams, no. 0 blocks and continuous rigid frame engineering of the bridge are positioned in rivers, lakes and canyons or in water at the edges of two banks, and ladder cages are erected in the water of the rivers, the lakes and the canyons to serve as up-and-down passages for workers to construct in the construction process.
The traditional safety ladder cage is directly erected on the flat ground, the requirement on the foundation is high, the safety ladder cage is directly erected on the flat ground, the influence of topography, landform and seasonal environmental factors (the rise of the water level) is large, the foundation is required to be built and improved, the foundation reconstruction cost in rivers, lakes and canyons is high, the poured concrete pile foundation is adopted as the foundation of the ladder cage, the problems of complex construction procedures, high cost, environmental protection and low efficiency exist, the construction operation channel requirement of each bridge structure in water cannot be met by the traditional safety ladder cage because the construction process is difficult to effectively reconstruct into the required foundation standard. And rivers in rivers, lakes, canyons can directly strike the ladder cage body, can't guarantee the safety and stability of ladder cage, have great potential safety hazard problem.
In view of the above, it is desirable to design a security ladder cage construction structure that can be used in currents in rivers, lakes, canyons.
Disclosure of Invention
The utility model provides a construction structure of a safety ladder cage of a continuous rigid frame bridge of a water pier, and aims to solve the problems that the traditional safety ladder cage is difficult to effectively set up in water flows of rivers, lakes and canyons, and has high use and setting up cost, environmental protection and poor safety and stability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a construction structure of a safety ladder cage of a continuous rigid frame bridge in water, which comprises a prefabricated steel pipe pile, a ladder cage mounting platform and a prefabricated ladder cage, wherein the bottom end of the prefabricated steel pipe pile is arranged in a water foundation rock layer, the ladder cage mounting platform is fixedly arranged at the top end of the prefabricated steel pipe pile, the top end of the prefabricated steel pipe pile is higher than the water surface, the prefabricated ladder cage is fixedly arranged at the top surface of the ladder cage mounting platform, the prefabricated ladder cage is provided with a safety door, a transit passage for leading to the pier in water is arranged in the prefabricated ladder cage, and a ladder is arranged in the prefabricated ladder cage.
Further, the top of prefabricated steel-pipe pile is provided with the longeron, ladder cage mounting platform is fixed to be set up on the top surface of longeron.
Further, the longitudinal beam is an I-shaped structural member, and comprises an upper plate, a connecting plate and a lower plate which are sequentially connected from top to bottom, wherein the connecting plate and the lower plate form a convex structural member, a through groove matched with the convex structural member is formed in the top end of the prefabricated steel pipe pile, the convex structural member penetrates through the through groove, and the longitudinal beam is matched with the prefabricated steel pipe pile in a clamping mode.
Further, the number of the prefabricated steel pipe piles is multiple, and the tops of all the prefabricated steel pipe piles are located on the same plane.
Further, the number of the prefabricated steel pipe piles is four, the tops of the four prefabricated steel pipe piles are sequentially connected to form a square structure, the number of the longitudinal beams is two, and the two longitudinal beams are arranged in parallel on the tops of the four prefabricated steel pipe piles.
Further, a connecting piece is arranged between the adjacent prefabricated steel pipe piles.
Further, the number of the prefabricated ladder cages is multiple, the prefabricated ladder cages are fixedly overlapped layer by layer, the adjacent prefabricated ladder cages are overlapped and combined to form a through hole, and the adjacent ladders in the prefabricated ladder cages are abutted through the through holes.
Further, a support piece is arranged between the prefabricated ladder cage and the underwater pier.
Further, the number of the supporting pieces is multiple, and the supporting pieces are arranged at intervals from top to bottom.
Further, the support piece comprises two parallel first support rods, two ends of each first support rod are respectively arranged on the prefabricated ladder cage and the underwater pier, the two first support rods and the underwater pier are sequentially connected with the connecting part of the prefabricated ladder cage to form a square structure, two second support rods are arranged between the first support rods in a crossing mode, and the two second support rods form diagonal lines of the square structure.
The beneficial effects of the utility model are as follows: the construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge of the application takes the pile sinking at the bottom end of the prefabricated steel pipe pile into the underwater foundation rock layer as the installation foundation of the prefabricated ladder cage, and fixedly arranging a ladder cage mounting platform at the top end of the prefabricated steel pipe pile, fixedly arranging the prefabricated ladder cage on the ladder cage mounting platform, and erecting a transfer channel between the prefabricated ladder cage and the underwater pier. The structure is simple, the installation steps are few, and the installation time is reduced; the method is beneficial to quickly setting up the safety ladder cage in the water flow of rivers, lakes and canyons for the construction of the underwater piers, has low cost and is environment-friendly, the setting up time of the safety ladder cage in the water flow is effectively reduced, and the construction cost is reduced. The top end of the prefabricated steel pipe pile is higher than the water surface, so that the impact of seasonal rising of water flow and water level to the prefabricated ladder cage is avoided, and the safety and stability of the safety ladder cage are improved. The pile sinking mode at the bottom end of the prefabricated steel pipe pile is adopted as the installation foundation of the prefabricated ladder cage, so that the damage to the reconstruction of the foundation in water and the pollution caused by the adoption of the poured concrete pile are avoided, and the method is more environment-friendly.
Drawings
FIG. 1 is a construction schematic diagram of a construction structure of a safety ladder cage of a continuous rigid frame bridge of an underwater pier;
FIG. 2 is a schematic diagram of the installation of prefabricated ladder cages in the construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge of the utility model;
FIG. 3 is a schematic view of the structure of the support member in the embodiment;
fig. 4 is a schematic view of pile sinking of a prefabricated steel pipe pile in an embodiment.
Reference numerals: transfer passageway 1, prefabricated ladder cage 2, ladder 3, support piece 4, first bracing piece 401, second bracing piece 402, ladder cage mounting platform 5, longeron 6, connecting piece 7, pile sinking platform 8, prefabricated steel-pipe pile 9, aquatic basic rock layer 10, surface of water 11, aquatic mound 12, no. 0 piece 13, steel sheet 14, pile sinking machine 15.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, 2, 3 and 4, the construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge comprises a prefabricated steel pipe pile 9, a ladder cage mounting platform 5 and a prefabricated ladder cage 2, wherein the bottom end of the prefabricated steel pipe pile 9 is arranged in an underwater basic rock layer 10, the ladder cage mounting platform 5 is fixedly arranged at the top end of the prefabricated steel pipe pile 9, the top end of the prefabricated steel pipe pile 9 is higher than a water surface 11, the prefabricated ladder cage 2 is fixedly arranged on the top surface of the ladder cage mounting platform 5, the prefabricated ladder cage 2 is provided with a safety door, the prefabricated ladder cage 2 is provided with a transit passage 1 for leading to the underwater pier 12, and a ladder 3 is arranged in the prefabricated ladder cage 2. Wherein the pile driver 15 may be used to drive the bottom end of the prefabricated steel pipe pile 9 into the underwater basic rock layer 10. The prefabricated steel pipe piles 9 and the ladder cage mounting platform 5, the ladder cage mounting platform 5 and the prefabricated ladder cage 2 can be fixedly connected in a welding mode or a bolt connection mode. The adoption of the pre-steel pipe pile 9 and the pre-fabricated ladder cage 2 further reduces the construction time, shortens the construction period and reduces the environmental pollution.
According to the construction structure of the underwater pier continuous rigid frame bridge safety ladder cage based on the structure, the pile sinking machine 15 is used for sinking the bottom end of the prefabricated steel pipe pile 9 into a water foundation rock layer to serve as a prefabricated ladder cage 2 installation foundation, the ladder cage installation platform 5 is fixedly arranged at the top end of the prefabricated steel pipe pile 9, the prefabricated ladder cage 2 is fixedly arranged on the ladder cage installation platform 5, and a transfer channel is erected between the prefabricated ladder cage 2 and the underwater pier 12. Pile sinking of the bottom end of the prefabricated steel pipe pile 9 into the underwater foundation rock layer is carried out to ensure that the prefabricated steel pipe pile 9 is not prone to sedimentation and deflection. The safety ladder cage is formed by sequentially installing and fixing the prefabricated steel pipe piles 9, the ladder cage installing platform 5 and the prefabricated ladder cage 2, has a simple structure and few installing steps, reduces the installing and erecting time of the safety ladder cage, shortens the construction period, improves the construction efficiency and reduces the construction cost; the top end of the prefabricated steel pipe pile 9 is higher than the water surface (for example, the top end of the prefabricated steel pipe pile 9 is 0.5m-2m higher than the water surface), so that the impact of the water flow and seasonal rising of the water level of the water flow on the prefabricated ladder cage 2 is avoided, and the safety and stability of the safety ladder cage are improved; the pile sinking mode at the bottom end of the prefabricated steel pipe pile 9 is adopted as the installation foundation of the prefabricated ladder cage 2, so that the damage to the reconstruction of the foundation in water and the pollution caused by the adoption of the poured concrete pile are avoided, and the environment is protected; to sum up this continuous rigid frame bridge safety ladder cage construction structures of aquatic mound is favorable to quick, low-cost, environmental protection to set up the safety ladder cage in rivers, lakes, canyons' rivers and is used for aquatic mound 12 construction, effectively reduces the time of setting up of safety ladder cage in the rivers, reduces construction cost. If in actual construction, when the left underwater pier is required to be constructed in the early stage, the heights of the left underwater pier and the right underwater pier are the same, a transit passage 1 is erected between (such as at the top of) the left underwater pier and the right underwater pier, and continuous rigid frame beam construction of the left underwater pier and the right underwater pier can be realized through the transit passage 1; when the left-width 0-shaped block 13 is required to be constructed in the later period, the left-width 0-shaped block 13 is higher than the right-width aquatic pier, the prefabricated ladder cage 2 can be erected on the top surface of the right-width aquatic pier (close to the side of the safety ladder cage), the prefabricated ladder cage 2 is erected towards the left-width aquatic pier to form a transfer channel 1 (if one end of the transfer channel 1 is erected on the top of the left-width 0-shaped block 13, the other end of the transfer channel is connected with the prefabricated ladder cage 2 on the top surface of the right-width aquatic pier), the construction of the left-width 0-shaped block 13 can be realized through the transfer channel 1, and when the conversion construction is required, the construction of the right-width aquatic pier is realized from the transfer channel 1 to the right-width aquatic pier, and the construction of the left-width 0-shaped block 13 is realized through continuous rigid frame beams, so that the construction of the left-width aquatic pier, the right-width 0-shaped block 13 is very convenient. Meanwhile, the construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge is also suitable for construction of erecting a land safety ladder cage, the bottom end of the prefabricated steel pipe pile 9 is driven into a land foundation, the ladder cage mounting platform 5 is fixedly arranged at the top end of the prefabricated steel pipe pile 9, the prefabricated ladder cage is fixedly arranged on the ladder cage mounting platform 5, and a transfer channel is erected between the prefabricated ladder cage and a pier column, so that the construction structure is wide in application range. Wherein a steel structure (such as a steel scaffold) is erected on the side wall of the underwater pier during construction.
Preferably, a longitudinal beam 6 is arranged at the top end of the prefabricated steel pipe pile 9, and the ladder cage mounting platform 5 is fixedly arranged on the top surface of the longitudinal beam 6.
Ladder cage mounting platform 5 is fixed on longeron 6, and the installation of longeron 6 is convenient for ladder cage mounting platform 5 is fixed, plays fine supporting role simultaneously. Wherein the longitudinal beam 6 and the prefabricated steel pipe pile 9 can be fixedly connected in a welding mode or a bolt connection mode.
Specifically, the longitudinal beam 6 is an I-shaped structural member, and comprises an upper plate, a connecting plate and a lower plate which are sequentially connected from top to bottom, wherein the connecting plate and the lower plate form a convex structural member, a through groove matched with the convex structural member is formed in the top end of the prefabricated steel pipe pile 9, the convex structural member penetrates through the through groove, and the longitudinal beam 6 is matched with the prefabricated steel pipe pile 9 in a clamping manner.
The longitudinal beam 6 and the prefabricated steel pipe pile 9 are fixed in a clamping mode, and the fixation is firmer. The longitudinal beam 6 and the prefabricated steel pipe pile 9 are welded or connected through bolts after being clamped and fixed, so that the longitudinal beam 6 and the prefabricated steel pipe pile 9 are connected into a whole, and the connection is firmer and more stable. The top end of the prefabricated steel pipe pile 9 is provided with a through groove matched with the convex structural member in a cutting mode.
The number of the prefabricated steel pipe piles 9 is multiple, the prefabricated steel pipe piles 9 are uniformly arranged at intervals, and the tops of all the prefabricated steel pipe piles 9 are located on the same plane.
The setting of many prefabricated steel-pipe piles 9 plays better supporting role to longeron 6, is difficult for the slope, further plays better supporting role to ladder cage mounting platform 5, makes ladder cage mounting platform 5 install more steadily. The top penetration and elevation methods of the prefabricated steel pipe piles 9 are adopted to enable the tops of all the prefabricated steel pipe piles 9 to be located on the same horizontal plane, and each prefabricated steel pipe pile 9 plays a supporting role on the ladder cage installation platform 5. Wherein the number of the prefabricated steel pipe piles 9 is two, three, four or more than four.
Preferably, the number of the prefabricated steel pipe piles 9 is four, the top ends of the four prefabricated steel pipe piles 9 are sequentially connected to form a square structure, the number of the longitudinal beams 6 is two, and the two longitudinal beams 6 are arranged at the top ends of the four prefabricated steel pipe piles 9 in parallel.
Adjacent prefabricated steel pipe piles 9 are a set of, and four prefabricated steel pipe piles 9 divide into two sets, and a longeron 6 corresponds to run through a set of prefabricated steel pipe piles 9 and fix, and every prefabricated steel pipe pile 9 of group plays better supporting role to corresponding longeron 6, and ladder cage mounting platform 5 sets up on the top surface of longeron 6 to four prefabricated steel pipe piles 9 adopt less prefabricated steel pipe piles 9 to realize steadily supporting ladder cage mounting platform 5. The top ends of the four prefabricated steel pipe piles 9 are sequentially connected to form a square structure, so that the ladder cage mounting platform 5 is supported and erected.
Preferably, a connecting piece 7 is arranged between the adjacent prefabricated steel pipe piles 9.
The connecting piece 7 links together prefabricated steel-pipe pile 9, makes all prefabricated steel-pipe piles 9 become a whole, and single prefabricated steel-pipe pile 9 receives external force to influence to become whole and receives external force (rivers impact force, wind-force etc.) influence, increases the safety and stability of prefabricated steel-pipe pile 9 to ensure the safety and stability of ladder cage mounting platform 5, and then ensure the stability of this continuous rigid frame bridge safety ladder cage construction structures of pier in water.
The number of the prefabricated ladder cages 2 is multiple, the prefabricated ladder cages 2 are fixedly overlapped layer by layer, through openings are formed in overlapped combination portions of two adjacent prefabricated ladder cages 2, and the ladders 3 in the two adjacent prefabricated ladder cages 2 are in butt joint through the through openings.
The quantity of prefabricated ladder cages 2 can be set up in a flexible way according to the specific construction design elevation requirement, if the prefabricated ladder cages 2 are not overlapped and are increased after the construction design elevation, the installation and the disassembly are convenient. The two adjacent prefabricated ladder cages 2 can be fixed by adopting a welding mode or a bolt connection mode.
Preferably, a support 4 is arranged between the prefabricated ladder cage 2 and the underwater pier 12.
And the support piece 4 is arranged between the prefabricated ladder cage 2 and the underwater pier 12, so that the prefabricated ladder cage 2 and the underwater pier 12 are connected into a whole, and the safety and stability of the prefabricated ladder cage 2 are improved. The steel plate 14 can be buried in the underwater pier 12, the steel plate 14 is welded with the upright post of the prefabricated ladder cage 2, or the upright post of the prefabricated ladder cage 2 and the steel plate 14 are perforated, and the upright post of the prefabricated ladder cage 2 and the steel plate 14 are fixedly connected through bolts. The prefabricated ladder cage 2 consists of a top plate, a bottom plate, upright posts and side plates (or protective nets), and safety doors are arranged on the side plates (or the protective nets).
Wherein the number of the supporting pieces 4 is a plurality, and the supporting pieces 4 are arranged at intervals from top to bottom.
The supporting pieces 4 are arranged at intervals (such as 3m-6m intervals), so that the height requirement of the safety ladder cage is met, and the overall safety and stability of the safety ladder cage are improved.
Specifically, the supporting piece 4 includes two parallel first supporting rods 401, each of the two ends of the first supporting rods 401 are respectively disposed on the prefabricated ladder cage 2 and the underwater pier 12, the two first supporting rods 401 and the underwater pier 12 are sequentially connected with the connecting portion of the prefabricated ladder cage 2 to form a square structure, the two first supporting rods 401 are provided with second supporting rods 402 in a crossing manner, and the two second supporting rods 402 form diagonal lines of the square structure.
The cross type connection (scissor type) is adopted, so that the connection between the prefabricated ladder cage 2 and the underwater pier 12 is firmer and more stable, and the safety ladder cage is safer and more stable. The connecting piece 7 can adopt the mode of support piece 4 to connect prefabricated steel-pipe pile 9 as a whole, makes prefabricated steel-pipe pile 9 connect as a whole after safer firm.
Claims (10)
1. The utility model provides a continuous rigid frame bridge safety ladder cage construction structure of aquatic mound, characterized by, including prefabricated steel-pipe pile (9), ladder cage mounting platform (5) and prefabricated ladder cage (2), the bottom of prefabricated steel-pipe pile (9) sets up in aquatic basic rock layer (10), ladder cage mounting platform (5) are fixed to be set up the top of prefabricated steel-pipe pile (9), the top of prefabricated steel-pipe pile (9) is higher than surface of water (11), prefabricated ladder cage (2) are fixed to be set up ladder cage mounting platform (5) top surface, the emergency exit has been seted up to prefabricated ladder cage (2), prefabricated ladder cage (2) are provided with transfer passageway (1) that are used for leading to aquatic mound (12), are provided with ladder (3) in prefabricated ladder cage (2).
2. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 1, wherein a longitudinal beam (6) is arranged at the top end of the prefabricated steel pipe pile (9), and the ladder cage mounting platform (5) is fixedly arranged on the top surface of the longitudinal beam (6).
3. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 2, characterized in that the longitudinal beams (6) are I-shaped structural members, comprising an upper plate, a connecting plate and a lower plate which are sequentially connected from top to bottom, wherein the connecting plate and the lower plate form a convex structural member, a through groove matched with the convex structural member is formed in the top end of the prefabricated steel pipe pile (9), the convex structural member penetrates through the through groove, and the longitudinal beams (6) are matched with the prefabricated steel pipe pile (9) in a clamping manner.
4. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 3, wherein the number of the prefabricated steel pipe piles (9) is multiple, and the top ends of all the prefabricated steel pipe piles (9) are located on the same plane.
5. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 4, wherein the number of the prefabricated steel pipe piles (9) is four, the top ends of the four prefabricated steel pipe piles (9) are sequentially connected to form a square structure, the number of the longitudinal beams (6) is two, and the two longitudinal beams (6) are arranged at the top ends of the four prefabricated steel pipe piles (9) in parallel.
6. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 4 or 5, wherein a connecting piece (7) is arranged between the adjacent prefabricated steel pipe piles (9).
7. The construction structure of the safety ladder cages of the underwater pier continuous rigid frame bridge according to claim 1, wherein the number of the prefabricated ladder cages (2) is multiple, the prefabricated ladder cages (2) are fixedly overlapped layer by layer, through holes are formed in overlapped combination portions of adjacent prefabricated ladder cages (2), and the ladders (3) in the adjacent prefabricated ladder cages (2) are in butt joint through the through holes.
8. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 7, wherein a supporting piece (4) is arranged between the prefabricated ladder cage (2) and the underwater pier (12).
9. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 8, wherein the number of the supporting pieces (4) is plural, and the supporting pieces (4) are arranged at intervals from top to bottom.
10. The construction structure of the safety ladder cage of the underwater pier continuous rigid frame bridge according to claim 9, wherein the supporting piece (4) comprises two parallel first supporting rods (401), two ends of each first supporting rod (401) are respectively arranged on the prefabricated ladder cage (2) and the underwater pier (12), the two first supporting rods (401) are sequentially connected with the underwater pier (12) and the connecting part of the prefabricated ladder cage (2) to form a square structure, two second supporting rods (402) are arranged between the two first supporting rods (401) in a crossing mode, and the two second supporting rods (402) form a diagonal line of the square structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073926.0U CN220598174U (en) | 2023-08-03 | 2023-08-03 | Construction structure of safety ladder cage of underwater pier continuous rigid frame bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073926.0U CN220598174U (en) | 2023-08-03 | 2023-08-03 | Construction structure of safety ladder cage of underwater pier continuous rigid frame bridge |
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| Publication Number | Publication Date |
|---|---|
| CN220598174U true CN220598174U (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322073926.0U Active CN220598174U (en) | 2023-08-03 | 2023-08-03 | Construction structure of safety ladder cage of underwater pier continuous rigid frame bridge |
Country Status (1)
| Country | Link |
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| CN (1) | CN220598174U (en) |
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2023
- 2023-08-03 CN CN202322073926.0U patent/CN220598174U/en active Active
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